Here are some sentences I'd like you to check Midlands

1) Joe and Simon ad successfully climbed to the top of Siula Grande, one of the most difficult mountains in the Andes.
2) They decided to climb down the mountain in spite of the dangerous weather conditions. They roped themseves together and climbed down.
3.However, Joe fell and broke his leg.
The decided that Simon would lower him on his rope.The storm became so intense that Simon accidentally left the day before.

1. Please let me know what the first four words mean ... or if something shouldn't be there.

2. They tied themselves...

3. "The" = ?? And the second sentence doesn't make sense to me.